RICHMOND -- A 35-year-old Richmond man was arrested Friday on suspicion of threatening to shoot a food mart clerk after the suspect came up 21 cents short while trying to purchase a cheese Danish, police said.

The man entered the Hilltop Drive store Friday morning and attempted to buy the $1.89 pastry with a "bunch of change," said Richmond police Sgt. Armando Moreno. The clerk tallied the coins too slowly for the suspect's liking, sending the man into a rage, Moreno said.

The suspect placed the Danish into his pocket and tried to leave, but the clerk locked the front door via a secret button, Moreno said, further agitating the man. The man finally placed the baked good on the counter but not before threatening to return to the store and shooting the clerk, the sergeant said.

The clerk allowed him to leave and wrote down his license plate number, relaying it to police.

Officers tracked the man to his house and found him "irate" outside, Moreno said. Officers arrested the man and took him directly to the County Jail in Martinez after he continued his aggressive behavior in the back of the police car, continually banging his head against the glass partition, the sergeant said.